JLG 680S Service Manual - Manual (Page 249)

SECTION 5 - HYDRAULICS
3121234 – JLG Lift – 5-9
1. 30 ft. lbs. (40.6 Nm)
2. 5 ft. lbs. (6.7 Nm)
3. 10-12 ft. lbs. (13.5-16.2 Nm)
4. 35 ft. lbs. (47.4 Nm)
5. 20 ft. lbs. (27 Nm)
Figure 5-13. Lift Cylinder Valve Cartridge Torque Values
BEFORE THE "MD" PORT PLUG IS REMOVED,
THE BOOM MUST BE SUPPORTED.
HOLDING VALVE
PROPORTIONAL VALVE